- Code, design and animations.
- Level design, models, skins, sound, music, and voice.
- Skins, 2D Art and voice.
- Design, concept art and the Ortega campaign.
- Deep space freighter Aspirant.
- BioLab Facility.
- DeepQantas, Hidden_Wolfe, Lizanneh, Microwave, Mordengaard, Raven and BrokenArts.
- Omega, DeepQantas, Chainsaws, Wildbill, Biohazard, Immortius, TheAlbaniac, SMithy, Master-Builder and Nachimir.
- Eljoelio for his initial AI code.
- Predator for the Sentry Gun model.
If you want to get in touch with the Alien Swarm developers, go here to send a message.